Arch Linux

cereberus

Banned

Registered: 2018-02-01

Posts: 12

xrandr command to set different brightness on two screens

Hi, I tried to change brightness of two LCD screens (independently) with a single xrandr command, however, the following command doesn't work:

xrandr --auto --output eDP1 --auto --brightness 0.5 --left-of HDMI1 --auto --brightness 0.8

Surprisingly, it affects only eDP1 and sets its brightness to the latter value (0.8 in this case).
I can change HDMI1 brightness by using the appropriate command afterwards:

xrandr --output HDMI1 --brightness 0.7

Fortunately, eDP1 brightness is unaffected by this command.

Hence, I achieved what I initially wanted. Nevertheless, I'd like to know whether accomplising this is possible with a single xrandr command.

---

Feather Wallet